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tractrix |
1 definition found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Tractrix \Tract"rix\, n. [NL. See {Tractor}.] (Geom.) A curve such that the part of the tangent between the point of tangency and a given straight line is constant; -- so called because it was conceived as described by the motion of one end of a tangent line as the other end was drawn along the given line
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